当你的朋友看到你因仰望天空而大笑时,一定会感到莫名其妙!到时候,你可以对他们说:“是的,星星总让我开心而笑!”
Teaching is the most glorious profession under the sun.
你知道的越多,就越意识到自己不知道的越多。
The past is a foreign country; they do things differently there.
Intelligent mining is the key to high-quality development in the coal industry.